In this paper, a 5-level Switched Capacitor (SC)-based grid-connected inverter (GCI) using Piecewise Linear Electrical Circuit Simulation (PLECS) tool is presented. This topology consists of six switches, 1 diode, 1 switched capacitor, and one single DC source. The SC is self-balanced based on the charging and discharging principle. This technique eliminates the usage of sensors and other additional circuitry for balancing the SC. The 1-phase grid-connected system has been subjected to a dq-frame current control technique. By incorporating an Inductor-Capacitor-Inductor (LCL) filter between the inverter and grid, a greater level of ripple attenuation capacity and active damping is achieved in the grid connection. In this control, active power is injected into the grid using the d-axis reference current, and finally, unity power factor (UPF) operation is attained by assuming that the q-axis current reference as zero. The simulation is carried out using PLECS Tool.
Single-Phase Grid-Connected 5-Level Switched Capacitor Inverter Using PLECS Tool
Lect. Notes Electrical Eng.
International Conference on Robotics, Control, Automation and Artificial Intelligence ; 2022 November 24, 2022 - November 26, 2022
2023-11-18
10 pages
Article/Chapter (Book)
Electronic Resource
English
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